Permutation-padlock



E. W. BELLAMY.

PERMUTATION PADLOCK.

APPLICATION FILED JAN. 29, 1920.

Patented Nov. 22, 1921.

2 SHEETSSHEET I.

' INVENTOR A TTORNE Y E. w. BELLAMY FERMUTATION PADLOCK.

APPLICATION FILED JAN. 29. I920.

1,397,717. Patented Nov. 22, 1921.

2 SHEETS-SHEET 2.

IN VEN TOR 2 M51454 X/M Z2294 A TTORNE Y UNITED STATES PATENT OFFICE.

EDWARD W. BELLAMY, OF TORRINGTON, CONNECTICUT.

PERMUTATION-PADLOCK.

T 0 all whom it may concern:

Be it known that I, EDWARD W. BELLAMY, a citizen of the United States, residing in the city of Torrington, county of Litchfield, and State of Connecticut, have invented new and useful Improvements in Permutation- Padlocks, of which the following is a specification, reference being had to the accompanying drawings.

The present inventionpertains to permutation padlocks.

The primary object is to produce a com bination padlock in a simple, eflicient and durable form, constructed of relatively few parts and without springs or other elements likely to get out of order.

A further object is to produce a lock of this character having a central core, surrounded by a plurality of permutation rings, said rings being channeled around their inner peripheries and slotted vertically to accommodate the lugs of the lock shackle.

A further object is to produce a lock of this kind, the permutation rings of which carry characters in the way of letters and numbers, and which rings may be rotated so as to bring certain characters into vertical alinement, for the purpose of releasing the shackle from the lock.

In the drawings:

Figure 1 is a perspective View with a section broken away to reveal the inner construction of the lock, the lock being shown in open position.

Fig. 2 isa similar view showing the lock closed.

Fig. 3 is a. detail of the shackle.

Fig. 4 is a detail of the top cap.

Fig. 5 is a detail of the base and core.

Fig. 6 is a detail of one of the permutation rings.

In carrying out my invention in its preferred construction, I provide a cylindrical core 1,;carrying the circular base 2, the core being disposed centrally relative to said base. The core 1 is provided with vertical channels 3 and 4, same being located diametrically opposite one to the other. The core 1 is likewise pierced with the vertical threaded bore 5 at its central point. The channels 3-and 4 are extended downwardly into the base 2 and enlarged, thus forming the cups 3 and 4', the purpose whereof will later appear. The circular cap 6 carries the integrally, centrally formed,

Specification of Letters'Patcnt.

Patented Nov. 22, 1 921.

Application filed January 29, 1920. Serial No. 354,917.

threaded bolt 7, adapted to mesh with the threaded bore 5 aforesaid, formed in the core 1. The cap 6 is of the same diameter 'as the base 2, and by means of the threaded bolt 7 may be securely screwed down into place upon the top of the core 1. When so located, a set screw 8 mounted through the cap 6 and engaging the core 1, serves to lock the cap securely in position and prevent its accidentally rotating and becom-. ing unloosened. The cap 6 is pierced with two shackle holes 9 and 10, adapted to fall into alinement with the channels 3 and 4 formed upon the core 1, as aforesaid. One of the shackleholes, as 10, is countersunk at its under side, as shown, to accommodate the foot of one of the shackle arms, as will later appear. A plurality of permutation rings 11 are provided, and adapted to slidingly engage the core 1, being seatedthereover. A number of these rings, as for instance 4 ,of them, may thus be mounted over the core 1 between the cap and base. These rings are provided with vertical slots 12 and 13 to correspond to and offset the vertical channels 3 and 4 formed in the .core 1. These slots 12 and13, in cooperation with the channels 3 and 4 are adapted to engage the shackle of the lock as'will be later described. The permutation rings 11 are likewise each formed with a central annular channel 14 around its inner periphery, adapted to engage the lock lugs of the shackle arms for locking same. A U-shaped shackle 15 is provided, the arms 16 and 17 thereof having outwardly projecting lock lugs 18 and 19, said lugs being so formed, shaped and spaced that while the inner edges of the shackle 15 pass down the channels 3 and 4 of the core 1, the lugs 18 and 19 will pass down the slots 12 and 13 of the permutation rings 11 while the lugs 18 and 19 slidingly engage the channels 14 of the rings 11; thus the rings 11 may readily be rotated over the lugs 18 and 19 of the shackle 15, for the purpose of locking the shackle in place. Any desired series of characters may be cut or inscribed around the outer peripheries of the rings 11, and guidelines 20 may be out upon the outer faces of the cap and base, and adapted to register with the similar divisional or guide lines 21 cut upon'thepermutation'rings 11 in combination with the characters, as shown.. The guide lines 20 are preferably out exactly opposite the channels 3 and i of the core .1 while the guide lines 21 are out exactly opposite the slots 12 and 13 of the rings 11; thus by'turningtlie rings ll so that the slots 12 and 13 upon each respective ring fall into vertical alinement, it'is 6V1; dent that the lugs 18 and 19 will be free to pass downwardly or upwardly for the purpose of looking or unlocking the shackle 15 from the body of the lock." The lower end of the arm 1'7 of the shackle 15 is extended below the lower end 23 ofthe arm 16 and is provided with an extendedfoot 22 which is adapted to engage the counterbore formedat the lower sidevof the shackle hole 10, thus retaining the shackle permanently in place upon the lock while permitting the shackle to swing freely, for the purpose of opening the lock. hen the shackle 15 is closed down into the lock the foot 22 of the arm 17 is received by the, cup 4', formed in the base 2, whereby the rings 11 are not interfered with and are enabled to rotate freely over the lugs 18 and 19, In order to facilitate assembling, the lug 22 may be formed at the end of the stem 24, said stem belng adapted to engage a bore 25 in the arm'17 and being locked thereinby means of a set screw 26.

The parts of course are. allto be rightly and nicely proportioned and finished to meet practical requirements. The permutation rings llare all'exactly similar and thus interchangeable, and by providing ad ditional or extra rings 11, and carrying the characters located adjacent the guide lines 21, in different ones of the rings, the com? binations required to open the lock may readily be changed by changing the rings. To change the rings and thus the combination, it is only necessary to remove the cap 6.

Vhile I have specific, methodlof constructing and assembling the elements of invei'ition, it is V understood same may be varied in -minor circular base: a cylindrical core centrally top'of said core a circular cap, correspond-.

details, notdepartingfrom the spirit of my invention asdefined in the appended claims. \Vhat I claim to be new and patentable is: 1.. A permutation padlock comprising a extended from the' base; two channels out along the core upondiametrically opposite sides thereof and perpendicularly to the base, saidchannels'being extended into the base in thefform ofenlarged cups; a-central, threadedbore' extended down into the ingto the. base'ya threaded bolt cent-rally extended from the cap and adaptedto screw into the, threaded-bore of the core;

two chackle-holes pierced through said cap,

upon diametrically opposite sides thereof,

and adaptedto register with-the channels out along sa1d;cor'e, one of said holes being herein described a certain the capand to travel the channels vformed along the core, the lower end of one arm having an extended foot adapted to. engage the countersunk shackle hole in the cap, 'as' means for linking the shackle to the lock, and the lower ends of both arms being adapted .to seat into the cups formed in the base as aforesaid; a plurality of outstanding lock-lugs formed along each shackle arm; a plurality of similar, interchangeable 1 permutation rings, rotatively mounted over the core, so as to fill the space'between the cap and base; an annular channel cut around the inner periphery of each permutation ring, each channel being adapted to slidingly engage the opposite lock-lugs .upon the shackle arms and thus lock the shackle in place; ,two transverse slots cut across the inner periphery of each permutation ring and across its annular channel, upon diametrically opposite sides, the respective slots of the several rings being adapted to register as the rings are rotated and thus release the lock-lugs of the shackle; and guide, lines and permutation characters formed upon the outer faces of the cap, base and rings to facilitate the formation of combinations.

2. A permutation padlock comprising a circular base; a cylindrical core centrally extended from the base; two channels out along the core, upon diametrically opposite sides thereof and perpendicularly to the base, said channels being extended into the base in the form of enlarged'cups; a'central, threaded bore extended down into the top of said core; a circular cap, corresponding'to the base; a threaded bolt centrally extended from the cap, and adapted to screw into the threaded bore of the core; two shackle holes pierced through said "cap, upon diametrically opposite sides thereof, and adapted to register with the channels cut along said core, one of said holes being countersunk at its underside; a U-sjh'aped' shackle, having its arms adapted to enterthe shackle holes formed through the cap and to travel the channels formed along the core, th'e lower end of one arm having an extended foot adapted to engage the countersunk shackle hole inthe cap, as means for linking the shackle to thelock, and the lower ends of both arms being adapted to seat into the} cupslformed in the base as aforesaid;-a plu mounted over the core, so as to fill thespace between the cap and base an "annular chan nel"'cut' a;roundthe inner periphery of each permutatlon ring, I each. 0113111 33 being @d P ed to slidingly engage the opposite lock-lugs adapted to register as the rings are rotated upon the shackle arms and thus lock the and thus release the lock-lugs of the shackle.

shackle in placeand. two transverse slots cut across the inher periphery of each per- EDWARD BELLAMY' 5 mutation ring and across its annular chan- Witnesses:

nel, upon diametrically opposite sides, the GLADYs PARTREE,

respective slots of the several rings being PAULINE M, PARTREE. 

